. >> reporter: david campbell was vice president of safety and security at american. >> we believe we have narrowed it down to how those were installed. >> reporter: two flights were forced to make emergency landings. the first incident occurred last wednesday on a flight from vail to dallas. the problem resurfaced saturday on the same plane, flying from boston to miami. >> the seat is loose. we don't want that thing flying around and hurting the passengers behind them. >> reporter: american says it hasn't been able to link the issue to one maintenance facility, but the company has ruled out sabotage. >> after both contract and our own internal maintenance. so finding what's causing was mechanical or human error is what we're trying to do. >> reporter: despite the company's ongoing labor dispute, travel experts are still not telling passengers to steer clear of the airline. >> i will tell you personal for thanksgiving and christmas i have a trip booked on american. i don't feel uncomfortable with it. if you ask me in three weeks and they haven't solve this had labor issue i night mite